Sony BVP-900 Series Product Information Manual page 29

(g) Skin Tone Auto Iris
A problem with conventional auto iris is that movements of bright
objects in a scene adversely affects facial exposure – a news studio is
a typical example. Skin Tone Auto Iris is a function that controls the
auto iris system to ensure a constant video level for a defined human
skin area within the scene. In the news studio example, when the
color phase is adjusted to match the facial tones of the news reader,
the iris now maintains the same video level even if the reader turns
the script, or people enter or exit the scene. It is effective for the
other colors in addition to human skin tone.
Figure 5-6 Correction curve image
(j) Fine Detail
The Fine Detail function allows the width of the
detail edge to be adjusted without changing the peak
level.*
*Effective for H details only.
(h) 3-D White Shading Correction
The camera picture area is divided into up to 1000 separate zones,
each of which may have different shading value. The correction is
automatically interpolated across adjacent zones. This technique
provides precise white shading correction over the whole picture
area. The 3D shading mode can be enabled through the camera
maintenance menu, and operates automatically each time white
shading is performed. Because the camera 'learns' and interpolates
the data the accuracy may be improved still further on subsequent
auto shading operations. White shading data should be stored in the
camera OHB file or will otherwise be lost when the camera power is
turned off.
fine DTL off
Figure 5-7 Signal curve image
BENEFITS OF SONY ADSP
Conventional Correction
3D Shading Correction
fine DTL on
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